Water treating apparatus



Y mnentor.' HNonewJ, @HessoN u(Itiornej June 2, 1942. A -J. cHEssoNWATER TREATING APPARATUS liled April 6, 1939 Patented June 2, 1942 UNITE D STAT E S PATENT OFFICE 1 Claim.

This invention relates to a water softening apparatus and forms acontinuation in part of my copending patent application, Serial Number202,921, filed April 19, 1938, which has matured into Patent Number2,195,616. In this copending application, a fractional portion of asupply of water is by-passed from the main line over a cake of Watersoftening material from whence it is returned to the main line of flow.The water, which is ley-passed over this material, absorbs a certainportion of this softening material. When the treated by-passed waterreturns to the main line it mixes with the water which was not by-passedso that all of the water is properly treated with this softeningmaterial. After the water `has been softened it is necessary to addcoagulating and purification agents to make it safe and desirable foruse.

It is an object ciJ this invention to provide an apparatus having lmeansfor periodically adding predetermined quantities of chloride Vsolutionto softened water and a further means for adding predeterminedquantities of a coagulating agent, such as alum, to this solution.

It is a further object of the invention to provide a tank having afilter in the upper portion thereof, and a water compartment disposed inthe lower portion into which the treated water is adapted to flow. Thewater coming from the softening device will be discharged into the spacebelow the filter where its force will be dissipated. This will allow theproper coagulation to take place, after which the treated water willseep upwardly through the filter and to the dispensing points.

Some of the objects of the invention having been stated, other objectswill appear as the description proceeds, when taken in connection withthe accompanying drawing, in which- Figure 1 is anelevation of myinvention showing certain portions thereof in section;

Figure 2 is a sectional view through the water treating mechanism andtaken along the line 2-2 in Figure l;

Figure 3 is an enlarged sectional view taken along the line 3--3 inFigure 2;

Figure 4 is a vertical sectional View through the apparatus foradmitting predetermined quantities of chlorine, chloride of lime, orother treating solutions to the softened water;

Figure 5 is a sectional view taken along the line 5-5 in Figure 4;

Figure 6 is a vertical sectional view taken along the line B-6 in Figure4.

Referring more specifically to the drawing, the

l"`J downward through the pipes 2 and l5' casing 56 is a bottom 51.

numeral I0 denotes a water supply 'main through which water is adaptedto now from any suitable source such as a reservoir to a dispensingpoint such as a spigot. The main I0 has a T Il installed therein fromwhich leads a pipe I2, which pipe has a hand-valve I4 therein. The pipeI2 is connected to another pipe l5 by any suitable means such as unionI6. Disposed in this pipe I 5 is one end of a pitot tube I1 (see Figures2 and 3) the open end of which is directed against the flow of waterwithin the pipe, This tube penetrates a -suitable hole Ila in the pipeand adjacent this point of penetration, the tube I1 is secured to asemi-circular clamp member I8 by any suitable means such as welding I9.Disposed between this member I8 and the pipe is a suitable gasliet 2'0to prevent any leakage of water from the pipe at this point. The memberI8 is held against the side of pipe I5 by means of another semi-circularclamp member 2| and stud bolts 22. As the water flows downwardly throughthe pipe I5, it is seen that the pitot tube will divert a fractionalportion thereof to the left in Figures 1 and 3. Disposed in the tube I1is a needle valve 5I which is operated to control the now of liquid. Itshould be noted that the main I0 also has a hand valve 52 installedtherein which is normally closed; therefore, the entire supply of waterin the main HI will be directed The lower end of the tube I1 isthreadably secured into cap 'member 54 of mixing chamber 55. This caphas a transparent casing 56 disposed on the lower side thereof and onthe lower side of this The members 54, 56 and 51 are held together byany suitable means such as vertically disposed bolts 58.

The bottom 51 has bearings 59 and 60 extending upwardly therefrom,between which shaft 62 is mounted (Figure 4). This shaft has xedlysecured thereon, an arm 63, each end of which supports a cup 64. Each ofthese cups has a pin 65 extending laterally therefrom which is adaptedto engage the lower end of flexible spring member 61, said spring member61 being adjustably secured in the cover member 54 by any suitable meanssuch as a set screw 68.

The water which is directed downwardly into the mixing chamber 55 bytube I1, is adapted to flow into one of the cups B4 which is disposedbeneath the outlet port of tube 59. The spring member 61 is adapted tobe so adjusted relative to the pin 65 that when the cup 64 becomesfilled to the desired extent, the lower end of the spring 61 willdeflect sufficiently to allow the filled cup 64 to rotate the shaft 62approximately 180 degrees to empty its contents into the mixing chamber55. When this is done,A the lowermost cup 64 will occupy the positionthat the uppermost cup previously occupied relative to the spring 61,after which the water will flow into this cup.

The shaft E2 has a cam 69 xedly secured thereon (see Figures 4 and 6)said cam having high points 'I0 and 'Il thereon. The periphery of thiscam is adapted to be contacted by roller I2 in the free end of a lever13. This lever is pivotally secured as at 'I4 to the lower side of capmember 54, The intermediate portion or lever I3 is loosely penetrated bya vertically disposed pin I5 which pin extends upwardly and-is slidablymounted in spider member T5, said spider member being secured in thelower portion of pipe TI. The upper portion of the pin l5 has a valvecap 18 thereon which closes port all when the roller 'I2 is disposed ona high side of the cam 59. Also disposed around pin 'l5 are coll-ars'55a and "E513, the collar 15a, being so positioned as to confine acoiled compression spring 8| around rod I5 and between this collar andlever 13. It is seen that this spring will allow a certain amount offlexibilityto be added to the upward movement of the pin I5 and thevalve cap 18. Threadably secured on the upper side of pipe TI is areservoir 82 in which a suitable purication agent is adapted to beplaced, such as a chloride solution for purifying the water.

When one of the cups 64 becomes lled with water, the shaft 62 is allowedto rotate approximately 18 0 degrees, at Which time the roller 'i2 willmove past one of the points 'IIJ or 'H to release the valve cap .78 andallow a predetermined quantity of chloride solution to now downwardlyinto the mixing chamber 55. When the 18 D degree rotation has takenplace, the roller 'I2 againrides upon a high side of the cam IBS tocause the port 80 to be closed. Simultaneously withthe closing of portBil a pin 65 contacts spring 61 to hold the cup 64 in proper positionuntilit is iilled.

The lower side of the mixing chamber 55 has a tube 85 leading therefrom,said tube having a check valve 86 therein, for preventing reverse now ofthe iiuid. This tube leads again into pipe I5 as at 37.

It is sometimes desirable to add a suitable coagulating agent such asalum to the water in order that the free particles in the water willcoagulate and settle. For this purpose a similar device is used, to thatwhich has just been described ior adding a chloride solution. A pitottube Siti leads from the pipe I5, said tube having a needle valve 92therein for controlling the flow. The lower end of the tube Sil leads toa mixing chamber 95, which is identical in all respects to a mixingchamber 55 just described. Since all parts are identical, a newdescription will not be made, but like reference characters will begiven to like parts. Leading from the lower side of mixing chamber 95 isanother tube 96, having a check valve 9T therein for preventing thereverse flow of the fluid through the pipe S6 and upwardly through themixing chamber.

After the sterilization and coagulating eleinents have been added to thesoftened water, tlie entire supply is emptied into compartment 93 oftank 99. By providing this compartment,into which the water isdischarged, the flow will be dissipated and the free particles in thewater will settle to the bottom of the tank. The upper portion of thistank 9S has a suitable screen basket Ill installed therein which isadapted to contain a suitable filtering material such as sassafras rootor charcoal II. The upper portion of tank 99 has a cover |92 securedthereto, and this cover has a plug |03 threadably secured thereinthrough which new filtering materials IBI are supplied to the tank. Thecap |32 also has av pipe |05 threadably secured therein. This pipe isjoined to another pipe I 05 by means of a union |01, said pipe Iilthaving a hand valve IEB therein.- The upper end of pipe |35 leads backinto main I0 at the T member II.

Therefore, it is seen that the sedimentation in the treated water isallowed to settle in the lower portion of compartment 38 after which thewater is directed upwardly through the filter |ll| and outwardly throughpipes I @5 and |06, and then back again into the main Il). The waterthen iiows through hand valve I l to any suitable point of dispensation.v

The lower side of the tank 99 has a pipe I I4 leading therefrom, inwhich a hand valve IIE is installed. When it is desired to wash theiilter by reversing the flow in the tank 99, it is necessary to closethe hand valves l I I and I4 and then open the hand Vvalves I I5 and 52.The water will then be allowed to flow through theV main I8 downwardlythrough pipe |66, pipe Il5, lter material IGI, chamber 93 and outthrough pipe IIF and hand valve H5. This will not only clean the lterlill but will also wash the sedimentation out of the bottom of tank 99.

In the drawing and specification, there has been set forth a preferredembodiment of the invention and although specic terms are employed, theyare used in a generic and descriptive sense only and not for thepurposes of limitation, the scope of the invention being set forth inthe appended claim.

I claim;

Apparatus for feeding a treating liquid to water passing through a main,comprising a casing, a by-pass pipe leading from the main to the top ofsaid casing, a pipe leading from the bottom of said casing back into themain,a horizontally disposed shaft in said casing, a plurality of spokesprojecting from said shaft, a cup disposed on theendV of each of thespokes, a resilient stop for arresting a cup directly below the end ofthe bypass pipe so that water will fall by gravity there-k into, aVsource of treating liquid having a piped connection with the casing, avalve normally preventing flow of the treating liquid into the casingfrom said source, a cam on said shaft for opening said valve when a cuphas been lled to a predetermined extent by water falling thereinto fromsaid by-pass pipe to move the cup past the resilient stop to rotate saidshaft a partial revolution until the next cup is arrested by said stop.

ANDREW J. CHESSON.

